在MediaPlayer中一個接一個地播放多個文件在android中

Question

我在MediaPlayer中播放多個mp3文件時遇到問題for android ...它一起播放所有文件並創建mess.I想要解決方案，它只是播放每個文件時間，然後在其他文件播放後。

Answer 1

有各種MediaPlayer的回調使用他們喜歡的：

http://www.androidadb.com/class/on/OnCompletionListener.html

mMediaPlayer.setOnCompletionListener(new OnCompletionListener() { 

    public void onCompletion(MediaPlayer theMediaPlayer) { 
     mParent.playNextAudio(); 
     mParent = null; 
    } 

http://developer.android.com/reference/android/media/MediaPlayer.html#setOnCompletionListener(android.media.MediaPlayer.OnCompletionListener)

Answer 2

你可以嘗試這樣的事情：

public class MainActivity extends Activity implements MediaPlayer.OnCompletionListener 
{ 
    int[] tracks = new int[3]; 
    int currentTrack = 0; 
    private MediaPlayer mediaPlayer = null; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     tracks[0] = R.raw.say1; 
     tracks[1] = R.raw.say2; 
     tracks[2] = R.raw.say3; 
     mediaPlayer = MediaPlayer.create(getApplicationContext(), tracks[currentTrack]); 
     mediaPlayer.setOnCompletionListener(this); 
     mediaPlayer.start(); 
    } 

    public void onCompletion(MediaPlayer arg0) { 
     arg0.release(); 
     if (currentTrack < tracks.length) { 
     currentTrack++; 
     arg0 = MediaPlayer.create(getApplicationContext(), tracks[currentTrack]); 
     arg0.setOnCompletionListener(this); 
     arg0.start(); 
     } 
    } 
} 

Answer 3

我用下面的代碼這樣做：

private ArrayList<MediaPlayer> mPlayerList = new ArrayList<MediaPlayer>(); 
public void playSound4FileList(ArrayList<String> fileList) 
{ 
    mPlayerList.clear(); 
    for (String fileName : fileList) 
    { 
     try { 
      MediaPlayer mPlayerT = new MediaPlayer(); 

      AssetFileDescriptor descriptor = context.getAssets().openFd(fileName); 
      mPlayerT.setDataSource(descriptor.getFileDescriptor(), descriptor.getStartOffset(), descriptor.getLength()); 
      descriptor.close(); 

      mPlayerT.prepare(); 
      mPlayerT.setVolume(1f, 1f); 
      mPlayerT.setLooping(false); 

      mPlayerList.add(mPlayerT); 

     } catch (Exception e) { 
     } 

    } 
    for (int i=0; i<mPlayerList.size()-1; i++) //Do not include last element 
    { 
     mPlayerList.get(i).setNextMediaPlayer(mPlayerList.get(i+1)); 

    } 

    mPlayerList.get(0).start(); 
}